IRelationalCommandDiagnosticsLogger.CommandScalarExecutingAsync 方法

定义

命名空间:

Microsoft.EntityFrameworkCore.Diagnostics

程序集:

Microsoft.EntityFrameworkCore.Relational.dll

包:

Microsoft.EntityFrameworkCore.Relational v8.0.0

CommandExecuting事件的日志。

public System.Threading.Tasks.ValueTask<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<object>> CommandScalarExecutingAsync (Microsoft.EntityFrameworkCore.Storage.IRelationalConnection connection, System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.DbContext? context, Guid commandId, Guid connectionId, DateTimeOffset startTime, Microsoft.EntityFrameworkCore.Diagnostics.CommandSource commandSource, System.Threading.CancellationToken cancellationToken = default);

abstract member CommandScalarExecutingAsync : Microsoft.EntityFrameworkCore.Storage.IRelationalConnection * System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.DbContext * Guid * Guid * DateTimeOffset * Microsoft.EntityFrameworkCore.Diagnostics.CommandSource * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj>>

Public Function CommandScalarExecutingAsync (connection As IRelationalConnection, command As DbCommand, context As DbContext, commandId As Guid, connectionId As Guid, startTime As DateTimeOffset, commandSource As CommandSource, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of InterceptionResult(Of Object))

参数

connection

IRelationalConnection

连接。

command

DbCommand

数据库命令对象。

context

DbContext

当前 DbContext 正在使用的 ，如果未知，则为 null。

commandId

Guid

与给定 DbCommand关联的关联 ID。

connectionId

Guid

与正在使用的 DbConnection 关联的关联 ID。

startTime

DateTimeOffset

执行开始的时间。

commandSource

CommandSource

命令的源。

cancellationToken

CancellationToken

等待 CancellationToken 任务完成时要观察的 。

返回

ValueTask<InterceptionResult<Object>>

截获的结果。

例外

OperationCanceledException

如果已取消 CancellationToken。